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What Does High Blood Sugar Do


What To Do When Blood Sugar Is High

What Are The Alarming High Blood Sugar Symptoms & Signs?

According to the American Diabetes Association, approximately 34.2 million Americans, or 10.5 percent of the population has diabetes of that number, 26.8 million are diagnosed and 7.3 million are undiagnosed. For these individuals, hyperglycemia is a major concern that must be carefully monitored and avoided. Hyperglycemia, or high blood sugar, is a term that describes a condition in which the concentration of glucose in the bloodstream gets too high. When people have high blood sugar levels regularly, the condition can cause damage to the organs, blood vessels, and nerves, as well as other health effects. If youre wondering what to do when blood sugar is high, there are several strategies that can help bring your blood sugar down quickly in an emergency and prevent spikes in blood sugar over time.

What Are Risk Factors For Hyperglycemia

Major risk factors for hyperglycemia are:

  • You have a family history of type 2 diabetes.
  • You are African American, Native American, Hispanic or Asian American.
  • You are overweight.
  • You have high blood pressure or cholesterol.
  • You have polycystic ovarian syndrome .
  • You have a history of gestational diabetes.

What Causes Hyperglycaemia

The underlying cause of hyperglycaemia is the loss of insulin-producing cells in your pancreas or your body developing resistance to insulin.

More immediate reasons for hyperglycaemia include:


  • missing a dose of diabetic medication, tablets or insulin
  • eating more carbohydrates than your body and/or medication can manage
  • being physically or emotionally stressed
  • having an infection.

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Tingling Hands And Feet

Over the years, hyperglycemia can begin to impact nerve function and eventually cause nerve damage, called neuropathy, Dr. Hatipoglu says. The most common kind of neuropathy is peripheral, according to the NIDDK, which affects the extremities. You might start noticing feelings of tingling, numbness, or burning in your hands, feet, arms, and legs, per the Mayo Clinic.

What Are Normal Blood Glucose Levels In Healthy Individuals

Effects of Low Blood Sugar on the Body

Blood sugar levels can either be normal, high, or low, depending on how much glucose someone has in their bloodstream. Glucose is a simple sugar thats present in the bloodstream at all times. Normal blood glucose levels can be measured when someone fasts, eats, or after theyve eaten. A normal blood glucose level for adults, without diabetes, who havent eaten for at least eight hours is less than 100 mg/dL. A normal blood glucose level for adults, without diabetes, two hours after eating is 90 to 110 mg/dL.

Many factors affect blood sugar levels throughout the day:

  • Type of food consumed, how much, and when
  • Physical activity
  • Menstrual periods
  • Alcohol

An ideal blood sugar level for anyone without diabetes or prediabetes, regardless of age, in the morning should be less than 100 mg/dL. Remember, blood sugar levels can fluctuate throughout the day as a result of the factors previously mentioned.


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Ketoacidosis: When Hyperglycemia Becomes Severe For People With Type 1 Diabetes

If you have type 1 diabetes, it is important to recognize and treat hyperglycemia because if left untreated it can lead to a dangerous condition called . This happens because without glucose, the body’s cells must use ketones as a source of energy. Ketoacidosis develops when ketones build up in the blood. It can become serious and lead to diabetic coma or even death. According to the American Diabetes Association, ketoacidosis affects people with type 1 diabetes, but it rarely affects people with type 2 diabetes.

Many symptoms of ketoacidosis are similar to hyperglycemia. The hallmarks of ketoacidosis are:

  • High level of ketones in the urine

  • Shortness of breath

  • Fruit-smelling breath

  • Dry mouth

Additionally, stomach pain, nausea, vomiting, and confusion may accompany ketoacidosis. Immediate medical attention is highly recommended if you have any of these symptoms.

Some people with diabetes are instructed by their doctor to regularly test ketone levels. Ketone testing is performed two ways: using urine or using blood. For a urine test, you dip a special type of test strip into your urine. For testing blood ketones, a special meter and test strips are used. The test is performed exactly like a blood glucose test. If ketone testing is part of your self-monitoring of diabetes, your healthcare professional will provide you with other information including prevention.


Low Blood Sugar Symptoms

Hypoglycemia happens when blood glucose levels drop too low. Low blood sugar can be caused by many things including the two different types of diabetes, certain medications, alcohol, endocrine disorders, eating disorders, pregnancy , and disorders of the liver, kidneys, or heart.

Here are some of the most common symptoms that someone with low blood sugar might experience:

  • Lightheadedness
  • Fainting
  • Tingling lips

If your blood sugar is low you might start to feel some of the first signs of hypoglycemia like dizziness, lightheadedness, or sweating. The only way to know for sure if your blood sugar is low is to test it with a glucose meter or other glucose monitoring device.

If you dont have access to these tools and start to feel the symptoms of low blood sugar, consume 15 grams of carbs or take a quick dissolve glucose tablet to raise your blood sugar levels and avoid further symptoms, according to the American Diabetes Association . Once your blood sugar is back in its target range, you can have a snack or meal to make sure it doesnt drop again.

Here are some other lifestyle and medicinal treatments that can help treat hypoglycemia:


  • Eat a healthy diet full of whole foods that are minimally processed.
  • Take prediabetes or diabetes medications as recommended by your healthcare provider.
  • Use a glucagon kit in emergencies. Glucagon is a hormone that raises blood sugar levels quickly.

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When Should I Check My Blood Sugar

How often you check your blood sugar depends on the type of diabetes you have and if you take any diabetes medicines.

Typical times to check your blood sugar include:

  • When you first wake up, before you eat or drink anything.
  • Before a meal.
  • Two hours after a meal.
  • At bedtime.

If you have type 1 diabetes, have type 2 diabetes and take insulin, or often have low blood sugar, your doctor may want you to check your blood sugar more often, such as before and after youre physically active.

High Blood Sugar: Causes Complications And How To Lower Blood Sugar

What a High Blood Sugar Feels Like

Your body breaks down glucose for energy using the insulin produced by the pancreas. This is required for our bodies to function. Illness can have an impact on the way our pancreas functions. Read this to learn how high blood sugar can affect your health.


7 minute read

    Your body requires energy to function, and this energy comes from food. Specifically, your body breaks down glucose for energy using the insulin produced by the pancreas.

    Type 1 and type 2 diabetes cause impairment to this breakdown of sugar in the body, causing blood glucose levels to become irregular. When glucose is not broken down into energy, it can build up in the bloodstream and then becomes a health problem.

    Your pancreas produces insulin, which breaks down glucose. With type 1 diabetes, the cells that produce insulin are mistakenly attacked by your immune system. As a result of this autoimmune condition, blood sugar levels can become dangerously high without intervention.

    Type 2 diabetes occurs when your body no longer responds to insulin as well as it should and then also causes glucose to accumulate in the blood.


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    Youre Developing Blisters Dryness Or Other Skin Changes

    Small pieces of extra skin, called skin tags, may form in the creases of skin, especially if you have diabetes and youre trying to find ways to manage your weight, notes the ADA. Dark, thick areas of soft skin may form on the back of the neck or hands, armpits, face, or other areas. These can be a sign of insulin resistance, Zanini says. Blisters, infections, dryness, itchiness, discolorations, and abnormalities of the skin can all be warning signs of high blood sugar. Check with your doctor if these skin changes develop.

    What Are The Symptoms Of Hyperglycemia

    Its especially important to know the early signs of hyperglycemia if you have type 1 diabetes. If hyperglycemia is left untreated in people with type 1 diabetes, it can develop into ketoacidosis, where ketones, which are toxic acids, build up in the blood. This condition is an emergency situation that can lead to coma or death.

    Early symptoms of hyperglycemia include:

    • High blood sugar.
    • Unusual fruity smell on the breath.
    • Deep labored breathing or hyperventilation.
    • Rapid heartbeat.

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    What Are The Recommended Targets For Blood Glucose Levels

    Many people with diabetes aim to keep their blood glucose at these normal levels:

    • Before a meal: 80 to 130 mg/dL
    • About 2 hours after a meal starts: less than 180 mg/dL

    Talk with your health care team about the best target range for you. Be sure to tell your health care professional if your glucose levels often go above or below your target range.

    High Blood Sugar Facts

    Pin on ELIZA
    • Low high blood sugar is abnormally high blood levels of insulin in the blood. Hyperglycemia is a hallmark sign of diabetes and prediabetes, and diabetes is the most common cause of it. Severely elevated glucose levels can result in a medical emergency like diabetic ketoacidosis or hyperglycemic hyperosmolar nonketotic syndrome .
    • The primary symptom of hyperglycemia is excessive amounts of sugar in the urine. Other symptoms and signs of high blood sugar levels in the blood are blurred vision, hunger , and headaches.
    • Other conditions that can cause high blood sugar are pancreatitis, Cushing’s syndrome, unusual hormone-secreting tumors, pancreatic cancer, certain medications, and severe illnesses.
    • Insulin is the treatment for people with type 1 diabetes, and life-threatening increases in glucose levels. People with type 2 diabetes may be managed with a combination of different oral and injectable medications. Hyperglycemia due to medical conditions other than diabetes is generally treated by treating the underlying condition responsible for the elevated glucose.

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    What Is Continuous Glucose Monitoring

    Continuous glucose monitoring is another way to check your glucose levels. Most CGM systems use a tiny sensor that you insert under your skin. The sensor measures glucose levels in the fluids between your bodys cells every few minutes and can show changes in your glucose level throughout the day and night. If the CGM system shows that your glucose is too high or too low, you should check your glucose with a blood glucose meter before making any changes to your eating plan, physical activity, or medicines. A CGM system is especially useful for people who use insulin and have problems with low blood glucose.

    You Develop Sores That Tend To Heal More Slowly Than Usual

    Cuts, scrapes, bruises, and other wounds heal more slowly in the presence of uncontrolled blood sugar, according to the National Institute of Diabetes and Digestive and Kidney Diseases. Diabetes causes nerve damage and affects circulation, especially in the lower legs and feet, which can delay healing because there isnt enough blood flow to the area. Even minor wounds are more prone to infections, which can become very serious and even result in amputations of the foot. You may notice drainage seeping onto your socks or an unpleasant smell if you develop a foot ulcer, notes the American Podiatric Medical Association.


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    Treating And Managing Hyperglycaemia

    If your blood sugar level is slightly high for a short time, emergency treatment wont be necessary. But if it continues to rise you may need to act fast to avoid developing diabetic ketoacidosis .

    If your blood sugar level is 15 mmol/l or more, you should check your blood or urine for ketones. If ketones are present, it is likely that you do not have enough insulin in your body. This means you may need to increase your dose or give yourself an extra dose. Talk to your diabetes team about how to do this if you are unsure.

    You should also try to drink plenty of sugar-free fluids to prevent dehydration. And if you are feeling unwell, especially if you are vomiting, you should follow any sick day rules you have been given and contact your diabetes healthcare team for advice.

    You Feel Tiredness And Fatigue Constantly

    How to Lower High Blood Sugars

    Fatigue and extreme tiredness are symptoms of uncontrolled blood sugar, the ADA says. Simply put, when your body is not processing insulin properly or it doesnt have sufficient amounts of insulin, the sugar is staying in our blood rather than getting into our cells to be used for energy, Zanini says. Also, frequent urination can lead to dehydration, which Bandukwala identifies as another contributing factor to fatigue.


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    What Are The Signs & Symptoms Of High Blood Sugar Levels

    Signs of high blood sugar levels include:

    • Peeing a lot: The kidneys respond by flushing out the extra glucose in urine. People with high blood sugar need to pee more often and in larger amounts.
    • Drinking a lot: Someone losing so much fluid from peeing that often can get very thirsty.
    • Losing weight even though your appetite has stayed the same: If there isn’t enough insulin to help the body use glucose, the body breaks down muscle and stored fat instead in an attempt to provide fuel to hungry cells.
    • Feeling tired: Because the body can’t use glucose for energy properly, a person may feel unusually tired.
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    How Can I Treat And Manage Hyperglycemia

    People with both type 1 and type 2 diabetes can manage hyperglycemia by eating healthy, being active, and managing stress. In addition, insulin is a critical part of managing hyperglycemia for people with type 1 diabetes, while people with type 2 diabetes may need oral medications and eventually insulin to help them manage hyperglycemia.

    If you dont have diabetes and have any of the signs and symptoms of hyperglycemia, call your healthcare provider. Together you can work to manage your hyperglycemia.

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    Complications Of High Blood Sugar

    Diabetes is one of the main causes of high blood sugar levels, but there are other causes that can impact your blood glucose and your risk for hyperglycemia.

    Hyperglycemia is the medical term for high blood sugar levels. You can have temporary spikes in blood sugar after eating a large meal or as a result of medication side effects. Chronically elevated blood sugar levels are dangerous and common in those with diabetes. Without treatment, you run the risk of a diabetic coma.

    Ketoacidosis is a condition that develops when elevated blood glucose levels go untreated. Without glucose to use for fuel, your body begins to burn fat instead and produces ketones. When there are too many ketones in the blood, it will turn acidic, which can very quickly lead to ketoacidosis, a diabetic coma, and even death.

    People without diabetes can develop a similar condition known as ketosis, but they can tolerate a certain level of ketones because inulin is still effectively working.

    Diabetic hyperosmolar syndrome is another serious complication of high blood sugar. This is more common among individuals with type 2 diabetes and is triggered by an infection or illness.


    As a result of the high blood sugar, your body tries to push out the excess glucose by passing it through your urine. Without treatment, this can result in life-threatening dehydration so prompt medical attention would be necessary.

    The Causes Of High Blood Sugar

    How Do I Quickly Bring Down My Blood Glucose (Lower High Blood Sugar ...

    In general, higher than normal blood glucose levels can be caused by:

    • not taking your diabetes medicine when you’re supposed to or not taking the right amounts
    • eating more food than your meal plan allows
    • not getting enough exercise
    • having an illness, like the flu
    • taking other kinds of medicines that affect how your diabetes medicines work

    Keeping blood sugar levels close to normal can be hard sometimes, and nobody’s perfect. Grown-ups can help you stay in balance if you have diabetes. Sometimes blood sugar levels can be high because you’re growing and your doctor needs to make some changes in your diabetes treatment plan.

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    How To Prevent Hyperglycaemia

    There are simple ways to reduce your risk of severe or prolonged hyperglycaemia:


    • Be careful what you eat be particularly aware of how snacking and eating sugary foods or carbohydrates can affect your blood sugar level.
    • Stick to your treatment plan remember to take your insulin or other diabetes medications as recommended by your care team.
    • Be as active as possible getting regular exercise can help stop your blood sugar level rising, but you should check with your doctor first if you’re taking diabetes medication, as some medicines can lead to hypoglycaemia if you exercise too much.
    • Take extra care when you’re ill your care team can provide you with some “sick day rules” that outline what you can do to keep your blood sugar level under control during an illness.
    • Monitor your blood sugar level your care team may suggest using a device to check your level at home so you can spot an increase early and take steps to stop it.

    Page last reviewed: 08 August 2018 Next review due: 08 August 2021

    High Blood Sugar: 13 Reasons Your Glucose Levels Are Rising

    May 2, 2021

    Itâs a fact of life that blood sugar fluctuates throughout the day. These ups and downs depend on a handful of factors, like when you wake up, what you eat, the medications you take, and how you manage stress. So, some variation is normal, to the point that you might not even notice it.

    Ignoring blood sugar level changes altogether, though, means youâre ignoring a valuable marker of your health. Especially if you start to have new or unfamiliar symptoms like fatigue, thirst, or brain fog . Learning these symptoms and their causes will give you the tools to better understand your own body, then take the right actions for better long-term metabolic health.

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